Adding template parameter to PrototypeIterator GetCurrent for casting

src/ic/handler-compiler.cc

 // Copyright 2014 the V8 project authors. All rights reserved.
 // Use of this source code is governed by a BSD-style license that can be
 // found in the LICENSE file.
 
 #include "src/ic/handler-compiler.h"
 
 #include "src/cpu-profiler.h"
 #include "src/ic/call-optimization.h"
 #include "src/ic/ic.h"
 #include "src/ic/ic-inl.h"
@@ skipping 312 matching lines @@
   bool lost_holder_register = false;
   auto holder_orig = holder();
   // non masking interceptors must check the entire chain, so temporarily reset
   // the holder to be that last element for the FrontendHeader call.
   if (holder()->GetNamedInterceptor()->non_masking()) {
     DCHECK(!inline_followup);
     JSObject* last = *holder();
     PrototypeIterator iter(isolate(), last);
     while (!iter.IsAtEnd()) {
       lost_holder_register = true;
-      last = JSObject::cast(iter.GetCurrent());
+      last = iter.GetCurrent<JSObject>();
       iter.Advance();
     }
     auto last_handle = handle(last);
     set_holder(last_handle);
   }
   Register reg = FrontendHeader(receiver(), it->name(), &miss, RETURN_HOLDER);
   // Reset the holder so further calculations are correct.
   set_holder(holder_orig);
   if (lost_holder_register) {
     if (*it->GetReceiver() == *holder()) {
@@ skipping 85 matching lines @@
   // Check that we are allowed to write this.
   bool is_nonexistent = holder()->map() == transition->GetBackPointer();
   if (is_nonexistent) {
     // Find the top object.
     Handle<JSObject> last;
     PrototypeIterator::WhereToEnd end =
         name->IsPrivate() ? PrototypeIterator::END_AT_NON_HIDDEN
                           : PrototypeIterator::END_AT_NULL;
     PrototypeIterator iter(isolate(), holder());
     while (!iter.IsAtEnd(end)) {
-      last = Handle<JSObject>::cast(PrototypeIterator::GetCurrent(iter));
+      last = PrototypeIterator::GetCurrent<JSObject>(iter);
       iter.Advance();
     }
     if (!last.is_null()) set_holder(last);
     NonexistentFrontendHeader(name, &miss, scratch1(), scratch2());
   } else {
     FrontendHeader(receiver(), name, &miss, DONT_RETURN_ANYTHING);
     DCHECK(holder()->HasFastProperties());
   }
 
   int descriptor = transition->LastAdded();
@@ skipping 150 matching lines @@
                                                  : kNoExtraICState);
         cached_stub = LoadDictionaryElementStub(isolate(), state).GetCode();
       }
     }
 
     handlers->Add(cached_stub);
   }
 }
 }  // namespace internal
 }  // namespace v8